“PO-12 | The long-term efficacy on migraine of non-ketogenic low-carb diet after treatment with ketogenic diet: Silvia Favaretto,1 Francesco Francini Pesenti2 | 1Headache centre, Neurology Unit, Department of Neuroscience, University Hospital of Padua; 2Department of Medicine (DIMED), Clinical Nutrition, University Hospital of Padua, Italy” (2025) Confinia Cephalalgica, 35(S1). doi:10.4081/cc.2025.15833.